<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <!-- v-model 用于表单双向数据绑定 -->
    <div id="app">
        <h1>{{text}}</h1>
        <input type="text" v-model="text">

        <button @click="flag=true">点击</button>
        <div v-show="flag">
            <span @click="flag=false">X</span>
            <p>弹窗</p>
        </div>

    </div>


    <script src="./vue.js"></script>
    <script>
        const vue=new Vue({
            el:"#app",
            data:{
                text:"弹窗",
                flag:false,
            }
        })
    </script>
</body>
</html>